yeah we both got close to .55 watts a gh
i used customs to do fan setting of 15% seems to work .
840 to 900 gh both seem to get .55 watts at 7250 volt setting
I didn't bother messing with the fan as its already so quiet its almost soothing
so the limit for 7250 is around 900GH/s safe to say... I was working my way up from lower voltages until the pool speed matched the miner to get my final results ...its just a matter of what frequencies are used from the looks of it...I guestimated the numbers I used and watched the APC change wattage with each setting but now I need a break from it before I go for turbo mode lol